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CCurve.cpp
资源名称：完整的基本图形绘制系统.rar　[点击查看]
上传用户：qiye66671
上传日期：2009-12-10
资源大小：182k
文件大小：4k
源码类别：

绘图程序

开发平台：

C/C++

CCurve.cpp：源码内容
  1. #include "stdafx.h"
  2. #include "CCurve.h"
  3. #include"EastDrawView.h"
  4. IMPLEMENT_SERIAL(CCurve,CObject,1)
  5. void CCurve::DrawStatic(CDC*pDC)
  6. {
  7.  CPen m_pen;
  8.  m_pen.CreatePen(m_PenStyle,m_PenWidth,m_PenColor);
  9.  CPen* pen=(CPen*)pDC->SelectObject(&m_pen);
  10.  int oldDrawingMode=pDC->SetROP2(m_DrawingMode);
  11.  
  12.     
  13. m_FirstPoint=m_PointList->GetAt(0);
  14.  pDC->MoveTo(m_FirstPoint);
  15.  for(int i=0;i<m_PointList->GetSize();i++)
  16.  {
  17.    pDC->LineTo(m_PointList->GetAt(i));
  18.    pDC->LineTo(m_PointList->GetAt(i));
  19.  }
  20.    pDC->LineTo(m_PointList->GetAt(i-1));
  21.    pDC->SelectObject(pen);
  22.    pDC->SetROP2(oldDrawingMode);
  23.   
  24. }
  26. int CCurve::IsOnMarginPoint(CPoint point)
  27. {
  28.   CRect rect;
  29.   for(int i=0;i<m_PointList->GetSize();i=i+10)
  30.   {
  31.    rect=CRect(m_PointList->GetAt(i),m_PointList->GetAt(i));
  32.    rect.InflateRect(4,4);
  33.    if(rect.PtInRect(point))
  34.    {
  35.    m_FoundPoint=m_PointList->GetAt(i);
  36.    return i+i;
  37.    }
  38.   }
  40.    return -1;
  41. }
  43. void CCurve::Initial()
  44. {
  45.  CUnit::Initial();
  46.  
  47.  m_PointList=new CArray<CPoint,CPoint>;
  48. }
  50. void CCurve::Serialize(CArchive &ar)
  51. {
  52. if(ar.IsStoring())
  53.   {
  54.    ar<<m_PenColor<<m_PenStyle<<m_PenWidth;
  55.   }
  56.   else
  57.   {
  58.   ar>>m_PenColor>>m_PenStyle>>m_PenWidth;
  59.  
  60.   }
  61.    m_PointList->Serialize(ar);
  62. }
  64. CCurve::CCurve()
  65. {
  66. Initial();
  67. }
  69. void CCurve::DrawMask(CDC*pDC,CPoint first,CPoint second)
  70. {
  71.  CPen m_pen;
  72.  m_pen.CreatePen(m_PenStyle,m_PenWidth,m_PenColor);
  73.  CPen* pen=(CPen*)pDC->SelectObject(&m_pen);
  74.  
  75.  pDC->MoveTo(first);
  76.  pDC->LineTo(second);
  77.  pDC->SelectObject(pen);
  78. }
  80. BOOL CCurve::IsInRgn(CPoint point)
  81. {
  82.  CRect rect;
  83.   for(int i=0;i<m_PointList->GetSize();i++)
  84.   {
  85.    rect=CRect(m_PointList->GetAt(i),m_PointList->GetAt(i));
  86.    rect.InflateRect(9,9);
  87.    if(rect.PtInRect(point))
  88.    return i;
  89.   }
  90. return -1;
  92. }
  94. void CCurve::ShowSelectPoint(CDC *pDC)
  95. {
  96.   CRect rect;
  97.   CBrush brush;
  98. brush.CreateSolidBrush(RGB(255,0,0));
  99. CPen m_pen;
  100. m_pen.CreatePen(PS_SOLID,1,RGB(0,0,255));
  101. CPen *OldPen=pDC->SelectObject(&m_pen);
  102. int oldBkMode=pDC->SetBkMode(OPAQUE); 
  103. CBrush *OldBrush=pDC->SelectObject(&brush);
  104. int oldDrawingMode=pDC->SetROP2(R2_NOTXORPEN);
  105.   for(int i=0;i<m_PointList->GetSize();i=i+10)
  106.   {
  107.    rect=CRect(m_PointList->GetAt(i),m_PointList->GetAt(i));
  108.    rect.InflateRect(3,3);
  109.    pDC->Rectangle(rect);
  110.   }
  111.     pDC->SelectObject(OldPen);
  112.     pDC->SetBkMode(oldBkMode); 
  113.     pDC->SelectObject(OldBrush);
  114.     pDC->SetROP2(oldDrawingMode);
  115. }
  117. CRect CCurve::GetBoundingRect()
  118. {
  119.  m_MinPoint=m_MaxPoint=m_PointList->GetAt(0);
  120.  for(int i=0;i<m_PointList->GetSize();i++)
  121.   {
  122.    m_MinPoint.x=min(m_MinPoint.x,m_PointList->GetAt(i).x);
  123.    m_MinPoint.y=min(m_MinPoint.y,m_PointList->GetAt(i).y);
  124.    m_MaxPoint.x=max(m_MaxPoint.x,m_PointList->GetAt(i).x);
  125.    m_MaxPoint.y=max(m_MaxPoint.y,m_PointList->GetAt(i).y);
  126.  }
  127.  
  128.  this->m_BoundingRect.SetRect(this->m_MinPoint,this->m_MaxPoint);
  129.  return this->m_BoundingRect;
  130. }
  132. void CCurve::DrawActive(CDC *pDC,CPoint point)
  133. {
  134.  this->DrawStatic(pDC);
  135.   
  136.    
  137. }
  139. void CCurve::OnMouseMove(CDC *pDC, CEastDrawView *pView, CPoint point)
  140. {
  141.     if(pView->m_CurrentDrawStatus==Drag_Status)
  142.   {
  143.     for(int i=0;i<m_PointList->GetSize();i++)
  144. {
  145.    CPoint point=m_PointList->GetAt(i);
  146.    point.Offset(pView->m_SecondPoint.x-pView->m_FirstPoint.x,pView->m_SecondPoint.y-pView->m_FirstPoint.y);
  147.    m_PointList->SetAt(i,point);
  148.    }
  149.   }
  150.  else
  151.   {
  152.   pDC->SetROP2(R2_COPYPEN);
  153.   pView->m_FirstPoint=pView->m_SecondPoint;
  154.   pView->m_SecondPoint=point;
  155.   m_PointList->Add(point);
  156.   //m_DrawingMode=pDC->GetROP2();
  157.       DrawMask(pDC,pView->m_FirstPoint,pView->m_SecondPoint);
  158.   }
  159.   
  160. }
  162. void CCurve::OnLButtonDown(CDC *pDC, CEastDrawView *pView, CPoint point)
  163. {
  164. if(m_HaveFindFirst)
  165. {   
  166. pView->L_iPointCount=IsOnMarginPoint(point);
  167.         if(pView->L_iPointCount!=-1)
  168. {
  169.         pView->m_bHaveFindSecond=true;
  170. pView->m_CurrentDrawStatus=Drag_Status;
  171. pView->m_CurrentDrawTool=Curve_Tool;
  172. pView->m_pCurrentUnit=this;
  173. m_DrawingMode=pDC->GetROP2();
  174.         ShowSelectPoint(pDC);
  175. DrawStatic(pDC);
  176. DrawOldReferencePoint(pDC,m_FoundPoint);
  177. }
  178. }
  179. if((!pView->m_bHaveFindSecond)&&IsInRgn(point)!=-1)
  180. {   
  181. if(!m_HaveFindFirst)
  182. {
  183.  m_HaveFindFirst=true;
  184.  pView->m_bHaveFindFirst=true;
  185.      ShowSelectPoint(pDC);
  186. }
  187.         else
  188. {
  189.  m_HaveFindFirst=false;
  190.  pView->m_bHaveFindFirst=true;
  191.  ShowSelectPoint(pDC);
  192. }
  194. }
  196. }